CN108061319A - A kind of eddy flow accelerator and the range hood with the eddy flow accelerator - Google Patents
A kind of eddy flow accelerator and the range hood with the eddy flow accelerator Download PDFInfo
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- CN108061319A CN108061319A CN201710593723.0A CN201710593723A CN108061319A CN 108061319 A CN108061319 A CN 108061319A CN 201710593723 A CN201710593723 A CN 201710593723A CN 108061319 A CN108061319 A CN 108061319A
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- Prior art keywords
- shell
- eddy flow
- air
- opening
- intake passage
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- 239000003517 fume Substances 0.000 claims abstract description 35
- 239000000779 smoke Substances 0.000 claims abstract description 22
- 238000005452 bending Methods 0.000 claims description 6
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000010411 cooking Methods 0.000 abstract description 5
- 230000001133 acceleration Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
Abstract
The invention discloses a kind of eddy flow accelerator, including first shell, second shell and air guiding seat；First shell and second shell are in the hollow tube-shape of both ends open, second shell is placed in first shell and has certain intervals between first shell and second shell and form eddy flow accelerated passage, first air inlet of the opening of second shell bottom as eddy flow accelerator, so that cooking fume stream enters；It is formed with to be formed the air intake passage of eddy flow in air guiding seat, air intake passage has opposite first end and second end, first end opening of air intake passage, the second air inlet as eddy flow accelerator, so that the air-flow for being used to be formed eddy flow enters, air intake passage extends from first end to second end and bore is gradually reduced, and air intake passage is at least connected in second end with inside first shell so that eddy flow enters eddy flow accelerated passage；The top of second shell be less than first shell top so that from second shell discharge oil smoke air-flow can with eddy flow with reference to and accelerate.
Description
Technical field
The present invention relates to range hood, especially a kind of eddy flow accelerator and the suction with the eddy flow accelerator
Kitchen ventilator.
Background technology
Range hood has become one of machine for kitchen use equipment indispensable in Modern Family, is cooked for discharging cooking stove
Generated oil smoke in journey.Usual range hood includes top suction type and side-suction type, and the range hood of top suction type is due to clean and tidy light
Ingeniously, the advantages that occupying little space, and it is in an increasingly wide range of applications.Top-sucking kitchen ventilator generally includes exhaust fume collecting hood, is located at
Blower housing on exhaust fume collecting hood is equipped with centrifugal blower in blower housing.
The range hood of common top suction type, a kind of suction as disclosed in the Chinese patent of Application No. 201410704669.9
Kitchen ventilator, the exhaust fume collecting hood including carrying inlet scoop are arranged on the wind cabinet on exhaust fume collecting hood top, are arranged on the interior wind for carrying spiral case of wind cabinet
Machine by the effect of wind turbine, forms negative pressure so as to which external oil smoke is sucked in wind cabinet while the gas in wind cabinet is discharged,
Realize the purpose of fume-exhausting.
Above-mentioned this top-sucking kitchen ventilator has many advantages, such as classical beauty, but also because of the limitation of its installation dimension, away from
650~750cm of requirement for height from hearth face, and it is known with the increase for leaving inlet scoop distance, and flow velocity is decayed in quadratic power,
Therefore very big influence is generated on smoke absorption effect, and anti-interference is poor, need to be further improved.
The content of the invention
First technical problem to be solved by this invention is carried in view of the above-mentioned problems of the prior art, providing one kind
Rise the eddy flow accelerator of smoking effect.
First technical problem to be solved by this invention is in view of the above-mentioned problems of the prior art, providing a kind of tool
There is the range hood of above-mentioned eddy flow accelerator.
Technical solution is used by the present invention solves above-mentioned first technical problem：A kind of eddy flow accelerator, it is special
Sign is：Including first shell, second shell and air guiding seat；The first shell and second shell are in the hollow of both ends open
Tubular, the second shell are placed in first shell and have certain intervals between first shell and second shell and formed
Eddy flow accelerated passage, the first air inlet being open as eddy flow accelerator of the second shell bottom, for oil smoke air-flow
Into；Be formed with to be formed the air intake passage of eddy flow in the air guiding seat, the air intake passage have opposite first end and
Second end, the first end opening of the air intake passage, the second air inlet as eddy flow accelerator to form eddy flow for being used for
Air-flow enter, the air intake passage extends from first end to second end and bore is gradually reduced, and the air intake passage is at least
It is connected in second end with inside first shell, so that eddy flow enters the eddy flow accelerated passage；The top of the second shell
Portion be less than first shell top so that from second shell discharge oil smoke air-flow can with eddy flow with reference to and accelerate.
For ease of forming eddy flow and eddy flow can be accelerated, according to an aspect of the present invention, the air guiding seat is in hollow disc
Shape, including roof, bottom wall and side wall, the side wall is connected between roof and the outer edge of bottom wall, the intermediate shape of the roof
Into the first opening, the second opening is formed among the bottom wall；The bottom of the first shell and the roof of air guiding seat connect, institute
It states the opening of first shell bottom to be adapted to the first opening of air guiding seat, the opening at the top of the first shell accelerates as eddy flow
The air outlet of device；The second shell is extended in pedestal, and second opening is corresponding with the opening of second shell bottom；Institute
State the periphery that the projection of air intake passage in the horizontal plane is looped around the projection of the first opening in the horizontal plane.
For ease of forming eddy flow and eddy flow can be accelerated, according to another aspect of the present invention, the air guiding seat is in hollow
Plate-like, including roof, bottom wall and side wall, the side wall is connected between roof and the outer edge of bottom wall, the centre of the roof
The first opening, the air outlet as eddy flow accelerator are formed, the intermediate of the bottom wall forms the second opening；The first shell
Top and the bottom wall of air guiding seat connect, the opening at the top of the first shell is adapted to the second opening of air guiding seat；Described
The inside bending in bottom, the outside bending in the bottom of second shell of one housing, so as between first shell and the bottom of second shell
It is connected and closes；The projection of the air intake passage in the horizontal plane is looped around the outer of the projection of the first opening in the horizontal plane
Week.
According to an aspect of the present invention, the projection tool of the first shell, second shell and air guiding seat in the horizontal plane
There is same center, the air intake passage is centrosymmetric for two and projection in the horizontal plane compared with the center,
The molded line of each air intake passage is helix.
For ease of formed eddy flow, according to an aspect of the present invention, the opening direction of the first end of each air intake passage with
The tangential direction of first opening corresponding position of air guiding seat is parallel.
For air-flow incidence is avoided to cause larger windage, so as to hinder the formation of eddy flow, for forming the air-flow of eddy flow
Incident angle is α, and the hunting range of incident angle α and tangential direction is：0°≤α≤30°.
For ease of forming eddy flow, according to another aspect of the present invention, the opening direction of the first end of each air intake passage
It is vertical with the tangential direction of the first of air guiding seat the opening corresponding position and radially outward.
For ease of guiding air-flow, acceleration forms eddy flow, the lateral second end extension one in the first end of each air intake passage
Segment distance is formed with guide card, and projection of the projection of the guide card in the horizontal plane with the first opening in the horizontal plane overlaps, described
Guide card with respect to center central angle for β, and 20 °≤β≤90 °.
According to another aspect of the present invention, the projection of the first shell, second shell and air guiding seat in the horizontal plane
With same center, the molded line of the air intake passage is helix, and the helical angle at the relatively described center of the air intake passage is
γ, and γ >=90 °.
It obtains sufficiently shrinking acceleration to form eddy flow, the air intake passage to ensure to enter the air-flow in air intake passage
The width of first end is h2, and the width of the air intake passage second end is s, and above-mentioned two parameter meets：H2 >=1.5 × s, s >=
1mm。
For ease of to air intake passage provide air flow source, further include the accessory fan being connected with the air intake passage first end,
So as to provide to form the air-flow of eddy flow to air intake passage.
First technical solution is used by the present invention solves above-mentioned second technical problem：One kind has as described above
Eddy flow accelerator range hood, including exhaust fume collecting hood, cabinet, the main air blower in cabinet, the air inlet of the main air blower
Mouth down and form horizontal arrangement, offer air inlet on the exhaust fume collecting hood, the eddy flow accelerator is arranged in cabinet, simultaneously
And below main air blower, the first air inlet of the eddy flow accelerator is corresponding with the air inlet on the exhaust fume collecting hood, described
There is certain interval between the top of eddy flow accelerator and the air inlet of main air blower.
Second technical solution is used by the present invention solves above-mentioned second technical problem：One kind has as described above
Eddy flow accelerator range hood, including exhaust fume collecting hood, cabinet, the main air blower in cabinet, the exhaust fume collecting hood is arranged on
The both sides of cabinet, the main air blower offer air inlet, often to be vertically arranged and being double air intake blower fans on the exhaust fume collecting hood
Eddy flow accelerator, the first air inlet and the air inlet on the exhaust fume collecting hood of the eddy flow accelerator are provided in a exhaust fume collecting hood
Mouth is corresponding.
To further speed up oil smoke air-flow and entering wind turbine convenient for guiding air-flow, the eddy flow accelerator further includes
Guiding device below second shell, the guide duct above first shell, the guiding device go to upper and lower opening
Hollow frusto-conical shape, the bore of the guiding device are gradually reduced from the bottom to top；The guide duct eddy flow is accelerated after oil
Flue gas stream is inducted into cabinet.
Compared with prior art, the advantage of the invention is that：By designing a kind of eddy flow accelerator, the air-flow shape of ejection
Into eddy flow, the oil smoke air-flow of upstream can be driven, high speed swirling eddy not only has axial velocity, while rotation makes gas to air-flow at a high speed
Flow center forms strong negative pressure, is further speeded up soot gas, the purpose accelerated so as to fulfill eddy flow；It is disposed at suction
The air inlet upstream of kitchen ventilator coordinates with the main air blower in fan shroud, is formed under the collective effect of inside suction force, drawn in and stove
Have the distance in pot face, improve cigarette tobacco control and antijamming capability, inherently solve that fume exhaust ability is bad to ask
Topic.
Description of the drawings
The schematic diagram for the range hood that Fig. 1 is applied for one embodiment of the eddy flow accelerator of the present invention；
Fig. 2 is the sectional view of one embodiment of the range hood of Fig. 1；
Fig. 3 is the schematic diagram of one embodiment of the eddy flow accelerator of the present invention；
Fig. 4 is the transverse sectional view of the eddy flow accelerator of Fig. 3；
Fig. 5 is the longitudinal sectional view of the eddy flow accelerator of Fig. 3；
Fig. 6 is the transverse sectional view of second embodiment of the eddy flow accelerator of the range hood of the present invention；
Fig. 7 is the schematic diagram of the 3rd embodiment of the eddy flow accelerator of the range hood of the present invention；
Fig. 8 is the transverse sectional view of the eddy flow accelerator of Fig. 7；
The sectional view for the range hood that Fig. 9 is applied for the 4th embodiment of the eddy flow accelerator of the present invention；
Figure 10 is the schematic diagram of the 4th embodiment of the eddy flow accelerator of the present invention；
Figure 11 is the transverse sectional view of the eddy flow accelerator of Figure 10；
Figure 12 is the longitudinal sectional view of the eddy flow accelerator of Figure 10；
The sectional view for the range hood that Figure 13 is applied for the 5th embodiment of the eddy flow accelerator of the present invention；
Figure 14 is the sectional view of the range hood of Figure 13；
Figure 15 is the schematic diagram of the 5th embodiment of the eddy flow accelerator of the present invention；
Figure 16 is the longitudinal sectional view of the eddy flow accelerator of Figure 15；
Figure 17 is the transverse sectional view of the eddy flow accelerator of Figure 15.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
Embodiment one
Referring to Fig. 1~Fig. 5, a kind of range hood with eddy flow accelerator, including exhaust fume collecting hood 1, cabinet 2, positioned at machine
Main air blower 3 in case 2, main air blower 3 use the air inlet mouth down of horizontal arrangement, i.e. wind turbine 3.
It is formed with upward concave smoke collecting chamber 11 in exhaust fume collecting hood 1, is opened on exhaust fume collecting hood 1, positioned at the position at 11 top of smoke collecting chamber
Air inlet 12 equipped with range hood.In cabinet 2, positioned at the lower section of wind turbine 3, be provided with eddy flow accelerator 4, eddy flow accelerates dress
It is also corresponding with the air inlet 12 on exhaust fume collecting hood 1 to put 4.
In the present embodiment, eddy flow accelerator 4 includes first shell 41, second shell 42 and air guiding seat 43, wherein, the
One housing 41, the projection of second shell 42 and air guiding seat 43 in the horizontal plane have same center O.Air guiding seat 43 is in hollow disc
Shape, including roof 431, bottom wall 432 and side wall 433, side wall 433 is connected between the outer edge of roof 431 and bottom wall 432, top
The first opening 434 is formed among wall 431, the second opening 435 is formed among bottom wall 432.Second opening 435 and exhaust fume collecting hood
Air inlet 12 on 1 is corresponding.
First shell 41 is in hollow frusto-conical, and axial both ends open, wherein, bottom and air guiding seat 43
Roof 431 connects, and the opening of 41 bottom of first shell is adapted to the first opening 434 of air guiding seat 43.The bore of first shell 41
It is gradually reduced from the bottom to top, until top bore reaches minimum.The opening 411 at 41 top of first shell is used as eddy flow accelerator
4 air outlet.
42 part of second shell is located in first shell 41, is partly located in air guiding seat 43,41 box second shell of first shell
Between body 42 there are certain intervals and form eddy flow accelerated passage 422.Second shell 42 is in hollow cylindrical, and axial two
End opening, bottom are connected with the bottom wall 432 of air guiding seat 43, the opening 421 of 42 bottom of second shell and the second of air guiding seat 43
435 adaptation of opening, the first air inlet as eddy flow accelerator 4, so that cooking fume stream enters.It opens at 42 top of second shell
Mouth 423 is for the outflow of cooking fume stream.The top of second shell 42 is less than the top of first shell 41.
Roof 431, bottom wall 432 and side wall 433 collectively form two air intake passages 436 in 42 periphery of second shell, each
The first end 4361 of air intake passage 436 is open, and the second air inlet as eddy flow accelerator 4 to form eddy flow for being used for
Air-flow enters.The projection of air intake passage 436 in the horizontal plane is looped around the periphery of the projection of the first opening 434 in the horizontal plane.
Each air intake passage 436 extends from first end 4361 to second end 4362, bore is gradually reduced, one of air intake passage 436
Second end 4362 and another air intake passage 436 first end 4361 and 41 inside of first shell connect.Preferably, often
The molded line of a air intake passage 436 is helix.The opening direction of the first end 4361 of each air intake passage 436 and air guiding seat 43
The tangential direction of first 434 corresponding positions of opening is parallel.For forming the incident angle of the air-flow of eddy flow as α, and it is used for shape
Into the incident angle of the air-flow of eddy flow and the hunting range of tangential (tangential direction)：0°≤α≤30°.Preferably, two air inlets are logical
The projection of road 436 in the horizontal plane is centrosymmetric compared with center O, and the helical angle of each air intake passage 436 is 180 °.
In cabinet 2, the first end 4361 of each air intake passage 436, an accessory fan 44 is connected to, for by machine
Air-flow in case 2 is blown into air intake passage 436.Have one between the top of eddy flow accelerator 4 and the air inlet of main air blower 3
Fixed interval, so as to provide air flow source for accessory fan 44.
The height of second shell 42 is a1, and the whole height of eddy flow accelerator 4 is b1, and the height of air guiding seat 43 is h1,
Above three parameter meets：H1≤a1 ＜ b1, to ensure that vortex gas-flow plays the role of acceleration to oil smoke air-flow.First shell 41
Cone angle 1/2 for θ, and θ meets θ >=0 °.Accelerate to avoid influencing eddy flow, a diameter of c1 of the second opening 435, first opens
A diameter of d1 of mouth 434, above-mentioned two parameter meet c1≤d1.
When range hood works, main air blower 3 and accessory fan 44 start, accessory fan 44 blow out wind tangentially into
Enter the air intake passage 436 of the formation of air guiding seat 43, and obtain shrinking in air intake passage 436 and accelerate, enhance the rotational energy of eddy flow
Power, hereafter air-flow is upward, and since the bore of first shell 41 is gradually reduced, eddy flow shrinks acceleration again, speed obtain into
One step is promoted.Meanwhile oil smoke air-flow is upward below range hood, enters second shell from the second opening 435 of air guiding seat 43
42, when being flowed out from the top of second shell 42, the eddy flow in first shell 41 is run into, oil smoke air-flow moment is accelerated, so
Enter main air blower 3 afterwards.
In above process, high speed swirling eddy not only has axial velocity, while rotation makes air-flow center to air-flow at a high speed
Strong negative pressure is formed, is further speeded up soot gas, the purpose accelerated so as to fulfill eddy flow.
Embodiment two
Referring to Fig. 6, in the present embodiment, with above-described embodiment one the difference is that, in each air intake passage 436
Lateral second end 4362, which extends a distance into, in first end 4361 is formed with guide card 45, the projection of guide card 45 in the horizontal plane and the
The coincidence of one opening 434, central angle of the guide card 45 with respect to center O is β, and 20 °≤β≤90 °.Guide card 45 can guide gas
Stream, accelerates the formation of eddy flow.
Embodiment three
Fig. 7 and Fig. 8, in the present embodiment, with above-described embodiment two the difference is that, each air intake passage 436
4361 opening direction of first end is vertical with the tangential direction of the first 434 corresponding positions of opening of air guiding seat 43, and radially outward.
Thus 4361 opening direction of first end of two air intake passages 436 being projected as in the first opening 434 in level in the horizontal plane
Projection on face is radially.And likewise, the incident angle of air-flow be α, the hunting range with radial direction：0°≤α≤30°.
Example IV
Referring to Fig. 9~Figure 12, in the present embodiment, the difference is that, air guiding seat 43 is located at above-described embodiment one
The top of first shell 41, first shell 41 are in hollow cylindrical shape, and open top simultaneously connects with the bottom wall 432 of air guiding seat 43
It connects, the opening at 41 top of first shell is adapted to the second opening 435 of air guiding seat 43.First 434 conducts of opening of air guiding seat 43
The air outlet of eddy flow accelerator 4.The interior side opening of air intake passage 436 so that eddy flow enter the centre of air guiding seat 43 so that into
Enter in first shell 41.
Second shell 42 is located in first shell 41, and in hollow frusto-conical, bore is gradually reduced from the bottom to top,
The opening 421 of 42 bottom of second shell, the first air inlet as eddy flow accelerator 4, so that cooking fume stream enters.Second shell
The open top of body 42 and the top for being less than first shell 41.The inside bending in bottom of first shell 41, second shell 42
The outside bending in bottom, so as to be connected and close between first shell 41 and the bottom of second shell 42.
When range hood works, main air blower 3 and accessory fan 44 start, referring to Figure 11 and Figure 12, signified point of arrow
Not Wei eddy flow and oil smoke air-flow flow direction, the air inlet that the wind that accessory fan 44 is blown out is tangentially entered the formation of air guiding seat 43 leads to
Road 436, and obtain in air intake passage 436 shrinking and accelerate, enhances the rotatory power of eddy flow, and hereafter air-flow is along first shell
41 side wall moves down, and is moved up further along the side wall of second shell 42, since 42 bore of second shell is gradually reduced, because
This eddy flow shrinks acceleration again, and speed is further promoted, until being moved to air guiding seat 43, enters in real time with air guiding seat 43
The eddy flow that air-flow is formed crosses, and forms double-cyclone.Meanwhile oil smoke air-flow is upward below range hood, from second shell 42
Bottom opening enters, and when being flowed out from the top of second shell 42, runs into the double-cyclone in air guiding seat 43, oil smoke air-flow moment obtains
To acceleration, subsequently into main air blower 3.
Embodiment five
Referring to Figure 13~Figure 17, in the present embodiment, the difference is that, second shell 42 is high with above-described embodiment one
Go out the height of air guiding seat 43 for a2, the open top bore of second shell 42 is b2, and 41 open-topped bore of first shell is
C2, the bottom opening bore of second shell 42 is d2, and the height of first shell 41 is e2, and the height of air guiding seat 43 is f2, above-mentioned
Parameter meets：D2 >=b2 >=50mm, c2 >=b2, e2 >=a2 >=0mm, 30mm≤f2≤200mm.With embodiment one likewise,
The 1/2 of the cone angle of one housing 41 is θ, and θ meets θ >=0 °.
In the present embodiment, an air intake passage 436 is simply formed in air guiding seat 43, the molded line of air intake passage 436 is also
Helix, helical angle of the helix with respect to center O are γ, and γ >=90 °, γ=450 ° shown in Figure 17.
The width of 436 first end of air intake passage is h2, and the width of 436 second end of air intake passage is s, to ensure by auxiliary wind
The air-flow that machine 44 enters, which obtains sufficiently shrinking, to be accelerated to form eddy flow, and above-mentioned two parameter meets：H2 >=1.5 × s, s >=
1mm。
Eddy flow accelerator 4 further includes the guiding device 46 positioned at 42 lower section of second shell, and guiding device 46 is gone to upper and lower out
Mouthful hollow tube-shape, for ease of preferably guiding air-flow, guiding device 46 is whole in the form of a truncated cone, bore from the bottom to top by
It is tapered small.The top of guiding device 46 is connected with the bottom of second shell 42, and oil smoke air-flow thus is inducted into second shell 42
It is interior.
Range hood in the present embodiment, main air blower 3 is different from the various embodiments described above, to be vertically arranged, and it is main
Wind turbine 3 is double air intake blower fans, and exhaust fume collecting hood 1 is arranged in the left and right sides of cabinet, in each exhaust fume collecting hood 1 above-mentioned eddy flow is set to add
Speed variator 4, the bottom opening of exhaust fume collecting hood 1 is corresponding with the bottom opening of guiding device 46, forms the air inlet 12 of range hood.
Exhaust fume collecting hood 1 and the adjacent lateral opening of cabinet 2 are so that 2 internal flow unicom of exhaust fume collecting hood 1 and cabinet, eddy flow add
Speed variator 4 further includes the guide duct 47 for being arranged on 41 top of first shell, and the oil smoke air-flow after being accelerated by eddy flow is inducted into machine
In case 2, and then the air-flow is entered in main air blower 3.
By setting the eddy flow accelerator of one of the various embodiments described above in range hood, the entrance of flue gas stream can be promoted
The speed of main air blower impeller prevents outer basin from generating local eddy currents, can expand fume exhauster air inlet negative pressure to a certain extent,
So as to improve smoke absorption effect.
Claims (14)
1. a kind of eddy flow accelerator, it is characterised in that：Including first shell (41), second shell (42) and air guiding seat (43)；
The first shell (41) and second shell (42) are in the hollow tube-shape of both ends open, and the second shell (42) is placed in
In first shell (41) and between first shell (41) and second shell (42) there are certain intervals and form eddy flow and accelerate to lead to
Road (422), the first air inlet of the opening (421) of second shell (42) bottom as eddy flow accelerator, for oil smoke
Air-flow enters；
It is formed with to form the air intake passage (436) of eddy flow in the air guiding seat (43), the air intake passage (436) has phase
To first end (4361) and second end (4362), first end (4361) opening of the air intake passage (436), as eddy flow plus
Second air inlet of speed variator enters for being used to being formed the air-flow of eddy flow, and the air intake passage (436) is from first end (4361)
It is gradually reduced to second end (4362) extension and bore, the air intake passage (436) is at least in second end (4362) and first
Connection inside housing (41), so that eddy flow enters the eddy flow accelerated passage (422)；
The top of the second shell (42) is less than the top of first shell (41), so that discharged from second shell (42)
Oil smoke air-flow can with eddy flow with reference to and accelerate.
2. eddy flow accelerator according to claim 1, it is characterised in that：The air guiding seat (43) is in hollow plate-like, is wrapped
Include roof (431), bottom wall (432) and side wall (433), the side wall (433) is connected to the outer of roof (431) and bottom wall (432)
The first opening (434) is formed between edge, among the roof (431), the second opening is formed among the bottom wall (432)
(435)；The bottom of the first shell (41) is connected with the roof (431) of air guiding seat (43), first shell (41) bottom
The first opening (434) of opening and air guiding seat (43) be adapted to, the opening (411) at the top of the first shell (41) is as eddy flow
The air outlet of accelerator；The second shell (42) is extended in pedestal (43), second opening (435) and second shell
(42) opening (421) of bottom is corresponding；The projection of the air intake passage (436) in the horizontal plane is looped around the first opening (434)
The periphery of projection in the horizontal plane.
3. eddy flow accelerator according to claim 1, it is characterised in that：The air guiding seat (43) is in hollow plate-like, is wrapped
Include roof (431), bottom wall (432) and side wall (433), the side wall (433) is connected to the outer of roof (431) and bottom wall (432)
The first opening (434), the air outlet as eddy flow accelerator, the bottom are formed between edge, among the roof (431)
The second opening (435) is formed among wall (432)；The top of the first shell (41) and the bottom wall (431) of air guiding seat (43)
It connects, the opening (411) at the top of the first shell (41) is adapted to the second opening (434) of air guiding seat (43)；Described first
The inside bending in bottom of housing (41), the outside bending in bottom of second shell (42), so as to first shell (41) and second shell
(42) it is connected and closes between bottom；The projection of the air intake passage (436) in the horizontal plane is looped around the first opening
(434) periphery of projection in the horizontal plane.
4. the eddy flow accelerator according to Claims 2 or 3, it is characterised in that：The first shell (41), second shell
(42) and the projection of air guiding seat (43) in the horizontal plane has same center (O), and the air intake passage (436) is two, simultaneously
And projection in the horizontal plane is centrosymmetric compared with the center (O), the molded line of each air intake passage (436) is spiral
Line.
5. eddy flow accelerator according to claim 4, it is characterised in that：The first end of each air intake passage (436)
(4361) opening direction is parallel with the tangential direction of first opening (434) corresponding position of air guiding seat (43).
6. eddy flow accelerator according to claim 5, it is characterised in that：For forming the incident angle of the air-flow of eddy flow
For α, the hunting range of incident angle α and tangential direction is：0°≤α≤30°.
7. eddy flow accelerator according to claim 4, it is characterised in that：The first end of each air intake passage (436)
(4361) tangential direction of first opening (434) corresponding position of opening direction and air guiding seat (43) is vertical and radial direction to
Outside.
8. eddy flow accelerator according to claim 4, it is characterised in that：First end in each air intake passage (436)
(4361) lateral second end (4362), which extends a distance into, in is formed with guide card (45), the throwing of the guide card (45) in the horizontal plane
Projection of the shadow with the first opening (434) in the horizontal plane overlaps, and the guide card (45) is β with respect to the central angle at center (O), and
20°≤β≤90°。
9. eddy flow accelerator according to claim 2, it is characterised in that：The first shell (41), second shell
(42) and the projection of air guiding seat (43) in the horizontal plane has same center (O), and the molded line of the air intake passage (436) is spiral shell
Spin line, the helical angle of the relatively described center (O) of the air intake passage (436) are γ, and γ >=90 °.
10. eddy flow accelerator according to claim 9, it is characterised in that：The width of air intake passage (436) first end
It spends for h2, the width of air intake passage (436) second end is s, and above-mentioned two parameter meets：H2 >=1.5 × s, s >=1mm.
11. eddy flow accelerator according to claim 1, it is characterised in that：It further includes and the air intake passage (436)
The accessory fan (44) of one end (4361) connection, so as to provide to form the air-flow of eddy flow to air intake passage (436).
12. a kind of range hood with the eddy flow accelerator as any one of claim 1~8,11, including collecting cigarette
Cover (1), cabinet (2), the main air blower (3) in cabinet (2), the air inlet mouth down of the main air blower (3) and form horizontal cloth
It puts, air inlet (12) is offered on the exhaust fume collecting hood (1), the eddy flow accelerator is arranged in cabinet (2) and positioned at master
Below wind turbine (3), the first air inlet of the eddy flow accelerator is corresponding with the air inlet (12) on the exhaust fume collecting hood (1), institute
Stating has certain interval between the top of eddy flow accelerator and the air inlet of main air blower (3).
13. a kind of range hood with the eddy flow accelerator as any one of claim 9~11, including exhaust fume collecting hood
(1), cabinet (2), the main air blower (3) in cabinet (2), the exhaust fume collecting hood (1) are arranged on the both sides of cabinet (2), the master
Wind turbine (3) offers air inlet (12), each exhaust fume collecting hood to be vertically arranged and being double air intake blower fans on the exhaust fume collecting hood (1)
(1) eddy flow accelerator, the first air inlet and the air inlet on the exhaust fume collecting hood (1) of the eddy flow accelerator are provided in
(12) it is corresponding.
14. range hood according to claim 13, it is characterised in that：The eddy flow accelerator is further included positioned at second
Guiding device (46) below housing (42), the guide duct (47) above first shell (41), the guiding device (46)
The hollow frusto-conical shape of opening is gone to upper and lower, the bore of the guiding device (46) is gradually reduced from the bottom to top；The guide duct
(47) the oil smoke air-flow after eddy flow is accelerated is inducted into cabinet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593723.0A CN108061319A (en) | 2017-07-20 | 2017-07-20 | A kind of eddy flow accelerator and the range hood with the eddy flow accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593723.0A CN108061319A (en) | 2017-07-20 | 2017-07-20 | A kind of eddy flow accelerator and the range hood with the eddy flow accelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108061319A true CN108061319A (en) | 2018-05-22 |
Family
ID=62136644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710593723.0A Withdrawn CN108061319A (en) | 2017-07-20 | 2017-07-20 | A kind of eddy flow accelerator and the range hood with the eddy flow accelerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108061319A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375343A (en) * | 2019-06-06 | 2019-10-25 | 华帝股份有限公司 | Fume exhaust fan |
-
2017
- 2017-07-20 CN CN201710593723.0A patent/CN108061319A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375343A (en) * | 2019-06-06 | 2019-10-25 | 华帝股份有限公司 | Fume exhaust fan |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180522 |